Solar panels are designed to be durable and long-lasting, but that doesn’t mean they’re immune to wear or damage. Over time, weather, wiring, or equipment issues can reduce your system’s efficiency — or stop it from producing power entirely.
Knowing the early signs of a problem helps you schedule solar repairs before small issues become costly breakdowns.
Here are the most common warning signs that your solar panels may need professional attention.
1. Drop in Energy Production
If you notice your solar system generating less energy than usual — especially during sunny days — it’s one of the clearest signs something’s wrong.
Possible causes include:
- Dirty panels or shading
- Faulty wiring or connections
- Inverter issues
What to do: Check your monitoring app for output trends. If production has dropped significantly, call for a diagnostic inspection.
2. Inverter Warning Lights or Error Messages
Your inverter converts solar energy into usable electricity. If it displays a red light, error code, or “fault” message, there’s likely an internal problem that needs repair.
What to do: Don’t ignore inverter alerts. Licensed electricians can test voltage levels, reset the unit, or replace components if necessary.
3. Unexplained Increase in Utility Bills
A sudden rise in your electric bill may mean your solar system isn’t producing enough power, causing you to draw more from the grid.
What to do: Compare your current energy data with past months. If production has fallen despite consistent sunlight, your system likely needs maintenance or repairs.
4. Cracked or Damaged Panels
Storm debris, hail, or roof work can cause cracks or chips in your solar panels. Even small damage can allow moisture inside, leading to electrical shorts or corrosion.
What to do: Avoid walking on or inspecting panels yourself. Schedule a professional solar inspection to assess damage safely.
5. Faulty or Loose Wiring
Over time, temperature changes and vibration can loosen wiring connections or damage conduits. This can reduce efficiency, cause outages, or even pose a safety risk.
What to do: Have a licensed electrician inspect your wiring. They’ll test continuity and repair or replace damaged connectors as needed.
6. Panels Appear Dirty or Cloudy
Dirt, dust, pollen, and bird droppings can block sunlight, drastically reducing performance. In Texas, this buildup happens faster due to dry conditions and wind.
What to do: Schedule regular professional cleaning — at least twice a year — to keep your panels clear and efficient.
7. Roof Leaks Near Mounting Points
If you see water stains or leaks near where panels are installed, flashing or mounts may have loosened over time. Ignoring this can cause roof damage and system failure.
What to do: Call a licensed solar specialist immediately. They’ll inspect seals, tighten mounts, and reseal connections to stop leaks before they spread.
8. Monitoring System Not Updating
If your monitoring app suddenly shows “offline” or “no data,” it could mean your system isn’t communicating properly — often due to inverter or wiring issues.
What to do: Reset your monitoring app first. If the issue persists, schedule a diagnostic visit to identify the root cause.
9. Visible Corrosion or Burn Marks
If you notice rust, discoloration, or burn marks around wiring or junction boxes, it could signal overheating or moisture intrusion. These are safety concerns that require immediate professional service.
What to do: Shut off the system (if safe to do so) and contact a licensed solar technician for repair.
10. It’s Been Over a Year Since Your Last Service
Even if everything looks fine, systems that go too long without professional maintenance often develop hidden issues — especially in Texas weather conditions.
What to do: Schedule an annual inspection to catch problems early and ensure your panels continue producing efficiently.
